英语人教版九年级全册Unit 13 Section A 3a-3b.pptx

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1、Unit13Wearetryingtosavetheearth.SectionA3a-3bThesecondperiodImportantwords1.科学(n)______科学家(n)_______科学(adj)________2.危险(n)_____危险的(adj)____濒临灭绝的(adj)_________3.南方(n)_______南方的(adj)_______4.卖(v)______(n)_______Importantphrases:1.听说_________2.切掉；砍除_____3.不但---而且---__________4.对---有害__

2、__________5.在---顶端__________6.到目前为止_________7.处于危险中__________sharkfinfinsIsthesharkcruel？What’sthesharkdoing?Let’slookattheadvisement!Doyoulikesharkfin?↑鱼翅汤Whatarethefinsusedtodo?Shouldwebefriendlytosharks?Shouldwesavethesharks?A.Yes.Sharksareindanger.Ifwedon’tsavethem,theywilldisa

3、ppearsoon.B.No.Sharksareverystrong.Theyarecruelanddangerous.Thereisnoneedtosavethem.Read3aquicklyandfindoutthewriter’sopinion.Shouldwesavethesharks?ReadPara.1andwriteTorF.Proposing(提出)Youarekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup”.TSavethesharks!1.Whatdopeopledowithsha

4、rkswhentheycatchthem?(and)2.Whatdoyouthinkoffining?(notonly,butalso)ReadPara.2andanswerthequestions.Analyzing(分析)1.Whatdopeopledowithsharkswhentheycatchthem?(and)Theycutofftheirfinsandthrowthesharksintotheocean.Why?Sharkfinsareveryexpensive.Butthesharkmeatdoesn’ttastegood,itisverych

5、eap.Inordertosavethespaceformorefins,whichmeansmoremoney,peoplejustcutoffthesharks’finsandthrowthembackintotheocean.Thisiscalled“fining”.2.Whatdoyouthinkoffining?(notonly,butalso)Whathappentothesharksaftertheirfinsarecutoff?Withoutafin,asharkcannolongerswimandslowlydies.Thisisnotonl

6、ycruel,butalsoharmfultotheenvironment.…cruel,…harmful…==abowlofsharkfinsoupthelifeofawholeshark2.Whatdoyouthinkoffining?…cruel,…harmful…Whyisitharmfultotheenvironment?Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Enviro

7、nmentalprotectiongroupsaroundtheworldaskedgovernmentsto______________________ofsharkfins.2.Aresharkfinsgoodforhealth?ReadPara.3andanswerthequestions.No.What’sthefact?Solving(解决)stopthesale科学研究显示，鱼翅中胶原蛋白含量虽然很高，但缺少一种必需的氨基酸(色氨酸)，不容易被人体吸收。鱼翅的营养价值还不如牛奶，鸡蛋。另外，鱼翅被汞等有毒重金属污染的程度高达70%。鲨鱼处在食物链顶

8、端，因此它们体内积聚的有毒物质常常超出